Cheapest & Most Expensive Months To Book Flights To The UK
Planning a trip to the United Kingdom and wondering when flights are cheapest — and most expensive — to book? You’ve come to the right place!

Most Expensive Time to Fly to the UK
Airfare to the UK is most expensive when school breaks, holidays, and cultural events fill the calendar.
- June – August: Peak summer tourism in London, Scotland, and other cities; airfare is highest in July.
- December – early January: Christmas and New Year’s make this one of the costliest periods.
- April (Easter): Holiday demand raises fares.
- Late May (Spring Bank Holiday): Domestic and European travelers drive demand.
- August (Edinburgh Festival Fringe): Adds significant airfare pressure into Scotland.
Cheapest Months For Flights to the UK
The cheapest flights appear during the low and shoulder seasons when weather is less favorable and demand softens.
- January – February: Cold winter months with lowest airfare.
- March (pre-Easter): Affordable before spring holiday season.
- September – November: Cheaper flights after summer crowds leave.
- Early December (first half): Brief dip before holidays.
Price Summary Table for UK Flights
Time Period | Price Level | Why It Matters |
---|---|---|
June – Aug | 💲💲💲 Highest | Summer vacation demand |
Mid-Dec – Early Jan | 💲💲💲 Highest | Christmas & New Year holidays |
April (Easter) | 💲💲 High | Holiday demand |
Late May (Bank Holiday) | 💲💲 High | Domestic/European holiday |
Aug (Edinburgh Fringe) | 💲💲 High | Festival surge |
Jan – Feb | 💲 Lowest | Winter lull |
March (pre-Easter) | 💲 Low | Shoulder fares |
Sept – Nov | 💲 Low | Post-summer shoulder |
Early Dec (1st 2 weeks) | 💲 Low | Pre-Christmas dip |
Not A Member? ✈️
Save 40%-95% On Flights With Jetsetter Alerts Airline Mistake Fare & Flash Sales Alerts!